Autohotkey v2 Script for borderless window

You can use the following autohotkey v2 script to hide the taskbar and remove the window border for a 1080p setup:

#SingleInstance

OnceCounter := 0

Loop {
  If WinActive("Arcanum.exe") {
    If WinExist("ahk_class Shell_TrayWnd") {
      try WinHide("ahk_class Shell_TrayWnd")
    } Else {
      WinWaitNotActive("Arcanum.exe")
    }
  } Else {      
    try WinShow("ahk_class Shell_TrayWnd")
    If not WinExist("Arcanum.exe") {
      If OnceCounter > 0 {
        return
      } Else {
	OnceCounter := 1
        WinWaitActive("Arcanum.exe")
	WinMove 0,0
        WinSetStyle "-0xC00000"        
        WinSetStyle "-0x80000"
      }
    } 
  }
}

Intro

You can use this autohotkey v2 script to have a borderless window with hidden taskbar

Autohotkey script

#SingleInstance

OnceCounter := 0

Loop {
If WinActive("Arcanum.exe") {
If WinExist("ahk_class Shell_TrayWnd") {
try WinHide("ahk_class Shell_TrayWnd")
} Else {
WinWaitNotActive("Arcanum.exe")
}
} Else {
try WinShow("ahk_class Shell_TrayWnd")
If not WinExist("Arcanum.exe") {
If OnceCounter > 0 {
return
} Else {
OnceCounter := 1
WinWaitActive("Arcanum.exe")
WinMove 0,0
WinSetStyle "-0xC00000"
WinSetStyle "-0x80000"
}
}
}
}